From personal experience, Salvia is easy to grow with three huge specifics.
1) Like mentioned before, they like humid environment. You can train them to be resistant to dry areas but that requires misting them twice a day out of the humidity dome, then once a day, etc...
2) Be careful using fertilizers, they can burn the plant very quickly. Always try a very light dose and see if the edges of the leaves turn brown, and if not you can increase the dose (haha these guys are just like us with dosage).
3) Also kind of a critical point is watering schedules. Kind of like Kratom, they like a moist ground, but not a water-logged one. If it's in a pot, make sure you have tons of holes and some perlite on the very bottom to induce flow.
Finally, as anyone who grows Salvia will notice, practically whatever you do, at some point or another some of your leaves will turn brown and roll inwards. Totally normal, as the plant very rarely gives off seed and is therefore been propagated mostly by cloning, i.e. lack of genetic variation.
Good luck with the grow.
